Shade-ring clamp



(No Model.)

R- `VVOG-DING.

SHADE-RING GLAMP. No. 273,420. l Patented Mar. 6,1883.

fv/vendor' Jeazpg. Mae?,-

UNITED STATES PATENT OFFICE.

RALPH A. WCODING, OF KENSINGTON, ASSIGNORA-TO THE CHARLES PARKERCOMPANY, OF MERIDEN, CONNECTICUT.

SHADE-RING CLAMP.

SPECIFICATION forming part of Letters Patent No. 273,420, datedMarch'6,.1883.

Application filed January 27, 1883. (No model.) L

To all whom it may concern Be it known that I, RALPH A.Woonnvef, acitizen of the United States, residing at Kensington, in the county ofHartford and State' of Connecticut,haveinvented certain new and usefulImprovements,inShade-Ring Clamps; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the 1o art to which it appertains to makeand luse, the

same, reference being had to the accompanying drawings, and to lettersor figures of reference marked thereon, which .form a part of this'specication This invention relates to clamps for securing lamp-shadesto shade-rings; and it consists, partly, in combining with said ringspivoted clamps Aand springs, which force these clamps against the neckof the shade.

The said invention consists, further, in the peculiar construction oftheclamps and of the bearings on which they turn, whereby the action abovedescribed is made practicable without attaching the clamps to theshadering or providing any gudgeons or pivot-pins therefor.

In the accompanying drawings, Figure 1 represents a perspective view ofa lamp-shade ring provided with my pivoted spring-pressed 3o clamps.Fig. 2 ,represents a vertical section through the same, and Fig. 3represents a detail view in perspective of one of the said clamps.

The same letters of reference indicate the same parts in all thefigures.

Adesignates the body of the'shade-ring, provided with the usual internalhorizontal flange or partition,A, which has at regular intervalsopenings n, that receive the clamps B. The in- 4o ner end of each ofthese openings is closed by a bar, a', having a stud, a2, projectinginto said opening. These bars and studs are cast with the shade-ring,and so, too, is a rounded bead, A2, forming the outer boundary of each.

opening, and serving as the bearing whereon the clamp is pivoted thatturns therein.

Each one ofthe clamps B has a curvilinear recess, b, in its back, whichfits upon its bearin g-bead A2, allowing said clamp to turn for s l5cgrasping the lamp-shade. The front or inner face of each clamp iscurved, or constructed with inclines so arranged as to be equivalent tocurvature, and provided at its upper end with an inwardly-extendingstud, B. A spiral spring, C, in each instance is interposed 5 5 betweenbar a and clamp B, its ends surrounding studs a2 B', and heldin placethereby. The office of these springs is to force outward the upper endsof the clamps, and thereby cause the inner ends of said clamps tocloseupon 6o the neck of the lamp-shade and hold the same suspended. Eachclamp is provided with a lateral enlargement of its lower portions,forniing shoulders B2, which overlap the edges of the opening in whichit turns, so that the pressure of the spring will not force said clampup `out of its proper position.

A clamp thus constructedl is held at all times very securely in placewithout any actual attachment tothe shade-ring, and turns 7o pivotallywith no gudgeons and with no pivotpin.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is- 75 l. In combination with a shade ring andsprings, a set of shade-clamps turning pivotally within or upon saidshade-ring and forced against the shade by the action of said springs,substantially as set forth.

2. In combination with ashade-ring having bearing-beads formed upon it,a set of springpressed clamps having their hacks recessedcurvilinearlytoturn upon said beads,substan tially as set forth.

3. In combination with a shade-ring'having openings in its horizontalinner flange, a set of clamps pivoted in said openings, and havinglateral shoulders below the same, which extend beyond them on each side,and a series 9o of springs which bear against the upper ends ot' saidclamps, and thereby force their lower ends inward, for the purpose setforth.

1n testimony whereofI affix my signature in presence of two witnesses.

RALPH A. WOODING.-

